added proc_loadavg.c
Costa Tsaousis (ktsaou) committed
Feb 10, 2016 at 00:40 UTC
894141ec4a8705690810cf5a0b886244bd6312a8
2 files changed
+112
src/proc_loadavg.c
new
+88
@@ -0,0 +1,88 @@
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+#ifdef HAVE_CONFIG_H
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+#include <config.h>
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+#endif
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <string.h>
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+
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+#include "common.h"
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+#include "appconfig.h"
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+#include "procfile.h"
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+#include "rrd.h"
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+#include "plugin_proc.h"
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+
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+int do_proc_loadavg(int update_every, unsigned long long dt) {
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+ static procfile *ff = NULL;
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+ static int do_loadavg = -1, do_all_processes = -1;
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+
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+ if(dt) {};
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+
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+ if(!ff) {
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+ char filename[FILENAME_MAX + 1];
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+ snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/loadavg");
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+ ff = procfile_open(config_get("plugin:proc:/proc/loadavg", "filename to monitor", filename), " \t,:|/", PROCFILE_FLAG_DEFAULT);
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+ }
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+ if(!ff) return 1;
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+
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+ ff = procfile_readall(ff);
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+ if(!ff) return 0; // we return 0, so that we will retry to open it next time
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+
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+ if(do_loadavg == -1) do_loadavg = config_get_boolean("plugin:proc:/proc/loadavg", "enable load average", 1);
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+ if(do_all_processes == -1) do_all_processes = config_get_boolean("plugin:proc:/proc/loadavg", "enable total processes", 1);
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+
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+ if(procfile_lines(ff) < 1) {
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+ error("/proc/loadavg has no lines.");
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+ return 1;
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+ }
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+ if(procfile_linewords(ff, 0) < 6) {
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+ error("/proc/loadavg has less than 6 words in it.");
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+ return 1;
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+ }
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+
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+ double load1 = strtod(procfile_lineword(ff, 0, 0), NULL);
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+ double load5 = strtod(procfile_lineword(ff, 0, 1), NULL);
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+ double load15 = strtod(procfile_lineword(ff, 0, 2), NULL);
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+
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+ //unsigned long long running_processes = strtoull(procfile_lineword(ff, 0, 3), NULL, 10);
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+ unsigned long long active_processes = strtoull(procfile_lineword(ff, 0, 4), NULL, 10);
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+ //unsigned long long next_pid = strtoull(procfile_lineword(ff, 0, 5), NULL, 10);
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+
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+
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+ RRDSET *st;
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+
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+ // --------------------------------------------------------------------
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+
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+ if(do_loadavg) {
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+ st = rrdset_find_byname("system.load");
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+ if(!st) {
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+ st = rrdset_create("system", "load", NULL, "load", NULL, "System Load Average", "load", 100, update_every, RRDSET_TYPE_LINE);
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+
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+ rrddim_add(st, "load1", NULL, 1, 1000, RRDDIM_ABSOLUTE);
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+ rrddim_add(st, "load5", NULL, 1, 1000, RRDDIM_ABSOLUTE);
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+ rrddim_add(st, "load15", NULL, 1, 1000, RRDDIM_ABSOLUTE);
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+ }
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+ else rrdset_next(st);
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+
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+ rrddim_set(st, "load1", load1 * 1000);
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+ rrddim_set(st, "load5", load5 * 1000);
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+ rrddim_set(st, "load15", load15 * 1000);
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+ rrdset_done(st);
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+ }
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+
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+ // --------------------------------------------------------------------
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+
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+ if(do_all_processes) {
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+ st = rrdset_find_byname("system.active_processes");
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+ if(!st) {
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+ st = rrdset_create("system", "active_processes", NULL, "processes", NULL, "System Active Processes", "processes", 750, update_every, RRDSET_TYPE_LINE);
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+
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+ rrddim_add(st, "active", NULL, 1, 1, RRDDIM_ABSOLUTE);
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+ }
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+ else rrdset_next(st);
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+
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+ rrddim_set(st, "active", active_processes);
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+ rrdset_done(st);
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+ }
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+
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+ return 0;
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+}
web/index.html
+24
@@ -946,6 +946,30 @@ var chartData = {
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info: 'System swap memory, read from <code>/proc/meminfo</code>.'
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},
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+ 'mem.ksm_savings': {
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+ heads: [
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+ gaugeChart('Saved', '12%', 'savings', '#0099CC')
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+ ]
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+ },
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+
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+ 'mem.ksm_ratios': {
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+ heads: [
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+ function(id) {
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+ return '<div data-netdata="' + id + '"'
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+ + ' data-gauge-max-value="100"'
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+ + ' data-chart-library="gauge"'
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+ + ' data-title="Savings"'
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+ + ' data-units="percentage %"'
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+ + ' data-gauge-adjust="width"'
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+ + ' data-width="12%"'
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+ + ' data-before="0"'
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+ + ' data-after="-CHART_DURATION"'
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+ + ' data-points="CHART_DURATION"'
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+ + ' role="application"></div>';
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+ }
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+ ]
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+ },
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+
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'mem.committed': {
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colors: NETDATA.colors[3]
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},